Perforated building brick or block



DCC. 3, 1935. E, A STEWART 2,022,928

PERFORATED BUILDING BRICK OR BLOCK Filed May 7, 1954 Patented Dec. 3, 1935 UNITED STATES PA-TENT oFFIcE PERFORA-TED EBUILDING-BRICK OR 'BLOCK Enos A. Stewart, Canton, Ohio Application May 7, 1934, Serial No. 724,347

Claims.

The invention relates to building bricks or blocks and more particularly to a novel form of perforated brick.

In order to reduce the charges for transportation and handling of bricks, as well as the cost of material going into the bricks, it has become more or less common practice for manufacturers of building bricks to provide a plurality of vertical apertures, usually circular in cross section, entirely through the bricks.

The weight of such a brick is considerably less than that of a solid brick of the same dimensions, thus materially reducing the charges for transportation and handling of the bricks, as well as the cost of material used in the manufacture of the bricks.

It has been found, however, that such bricks are very objectionable to brick masons owing to the serious diiculty experienced in building a wall therewith. The apertures, in order to be of suicient cross sectional area to produce the desired efiect of materially reducing the weight of the brick, are of such size that the mortar, used for binding courses or the bricks together in a wall, is not supported across these apertures but falls therein more or less lling the same with mortar, thus not only wasting a considerable amount of mortar, but also wasting the brick masons time and resulting in a finished wall in which insufficient mortar is located between courses of the bricks.

The object of the present invention is to overcome these disadvantages and difliculties by producing a building brick which is considerably lighter in weight than a solid brick of the same dimensions, so as to reduce transportation and handling charges as well as cost of material required to make the brick, without sacriicing any of its strength or load bearing capacity.

A further object is to provide a perforated brick having perforations of such shape that the mortar will be bridged entirely across the perforations and will be held where it is needed in the building of a wall, instead of dropping into the perforations.

Another object of the improvement is to provide a brick having substantially round perforations extending vertically through the brick and provided with longitudinal ribs extending into the perforations at closely spaced intervals so as to retain the mortar across the top of the perforations when the brick is placed in a wall.

The above objects, together with others which will be apparent from the drawing and the following description, or which may be later pointed out, may be attained by constructing the improved brick in the manner illustrated in the accompanying drawing, in which Figure 1 is a detached perspective view of one4 of the improved bricks;

Fig. 2, an enlarged fragmentary plan view of one end portion of the brick; and

Fig. 3, a vertical sectional View through a portion of a wall constructed of the improved bricks.

Similar numerals refer to similar parts throughout the drawing.

As the clay column from which the bricks are to be formed is forced through the die of a brick machine, the apertures 4E) are formed therein by similarly shaped cores in the die, these apertures being lengthwise of the clay column as it issues from the die. As the clay column passes across the cutting table, the cutting wires are passed through the same as in usual practice, forming each individual brick as indicated generally at l l with the apertures l extending vertically therethrough. Any desired number of these apertures may be formed in a brick, a preferred arrangement being such as best shown in Fig. 1 of the drawing.

A plurality of closely spaced longitudinally disposed ribs l2 are formed within each of the apertures l0, these ribs being preferably provided with the rounded edges as indicated at i3, and being preferably of a width substantially equal tothe spaces between ribs.

When laid up in a wall, each brick is positioned as shown in Fig. 3 with the apertures li) extending vertically therethrough and as the mortar, indicated at I4, is placed over the top of each brick, the ribs I2 in the apertures of the brick 35 will support the mortar across the upper end of each aperture, as indicated at l5, preventing the mortar from dropping down into the apertures and holding it in proper position so that the next upper course of brick may be placed thereon.

It will thus be seen that a brick is provided which is considerably lighter in weight than a solid brick of the same dimensions, thus making a considerable saving in the charges for transportation and handling of the bricks as well as 45 in the material required for forming the same, while at the same time producing a brick which has the same strength as a solid brick and which also provides air insulation spaces when built up into a wall.

Although the improved building brick or block to which the invention pertains is referred to throughout the specification and claims as a brick, it should be understood that this term is not intended to limit the invention to a standard 55 disposed integral ribs located in and extending throughout the length of said aperture, the

` Widths of the ribs being substantially equal to the spaces between the ribs.

2. A brick having a plurality of vertical apertures extending therethrough, and longitudinally disposed rounded integral ribs located in and extending throughout the length of said apertures, the Widths of the ribs beingrsubstantially equal to the spaces between the ribs.

3. A brick having a plurality of vertical substantially circular apertures extending therethrough, and longitudinally disposed integral ribs located in and extending throughout the length of said apertures, the Widths of the ribs being substantially equal to the spaces between the ribs.

4. A brick having a plurality of vertical sub- 'Y stantiallyV circular apertures extending therethrough, and longitudinally disposed rounded integral ribs located in and extending throughout the lengthrof said apertures, the Widths ofthe ribs being substantially equal to the spaces between the ribs.

5. A Wall formed of courses of bricks having ENOS A. STEWART. 

